August V55/V62/V63/T14011/T07011/T04011/EE/20150810 2015

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August

2015 V55/V62/V63/T14011/T07011/T04011/EE/20150810

Basic Science

Marks-80 Instructions: 1. All questions are compulsory. 2. “Long Answer type Question (LAQ)” is a supply type question of 15 marks which required a typical answer of about 60-80 lines in bout 32-40 minutes. 3. “Sort Answer type Question (SAQ)” is a supply type question of 5 marks which required a typical answer of about 15-20 lines in bout 08-10 minutes. 4. Figures to the right indicate marks allotted to the questions. 5. Assume suitable data if necessary 6. Use a nonprogrammable type of scientific calculator is allowed Time: 3 Hrs Q.1 Q.1 Q.2 Q.2 Q.3 Q.4 Q.5

surface tension.

SECTION-A

Explain La place's Molecular theory of liquid and hence define

OR

State & explain three types of strain Explain the principle of optical fiber and its structure.

OR

State general gas equation and meaning of symbols used in it. Define cohesive force and adhesive force. How long will light take in travelling a distance 500 m in water? R.I of water is 4/3 and velocity of light in vacuum is 3x10 8 m/s.

SECTION-B

Explain electroplating process with example. Marks 15 15 15 15 5 5 15

Q.5 OR

Is the process of ionization is reversible? Why? 15

Q.6 Q.6

What is thermocol? Give its properties and applications.

OR

State two physical properties and two engineering applications of Fe, Cu and Al.

Q.7

A current of 3 amperes passing through silver nitrate solution for 20 minutes deposit hog of silver. What is the ECE of silver?

Q.8

Give characteristics of insulating materials.

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